Question

if the circumference of a circle is 22π cm then its radius

Answer 1

Hey dear here is your answer!!!!!

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We would be using the concept of circles to solve this question.

We have been given that the circumference of circle is 22π.

We also know that the circumference of a circle is the form of 2πr, where r is the radius.

According to question:-

2πr = 22π

r = $\frac{22 \pi}{2 \pi}$

r = 11 cm

So, the radius of the circle is 11 cm !

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Answer 2

Answer : 11 cm.

Foreword :

In Figures, We call the length around the figure as “ Perimeter”, In case of circle, It is called as Circumference.

As you go around a circle once, You will be covering the distance equal to its circumference.

Circumference C is defined by,

$C = 2\pi \: r$


SOLUTION :

Given,

$\sf \: Circumference = 22\pi$

$\implies \: 2\pi \: r = 22\pi \\ \implies \: r = \frac{22\pi}{2\pi} \\ \implies \: r = 11$

Therefore, Radius of this circle is 11 cm.